This Week in Science: A non-surgical intervention for knee pain, a superconductor temperature record, an immune system 'reset', and much more!First up: We may soon have a new treatment for arthritic knees. It involves injecting microscopic gel beads into the knee, which block blood flow to the new nerves and blood vessels that form with osteoarthritis. Importantly, it doesn't block blood flow to the knee itself, and the beads dissolve soon after.Also this week:
A new temperature record for superconductors
Stem cell treatment puts patients with a severe autoimmune disease into remission
A strange signature found on two very different worlds
A 'black hole' in the lab backs up a long-standing theory
